For recommendations on how many drives to select per pool, as well as other considerations and guidelines, see Storage Pool Concepts. You must select the same data profile currently used in the existing pool. To understand the different data profiles, see Data Profiles for Storage Pools. If ...
ZFS requires one or more dedicated block devices, preferably solid-state drives (SSDs). The /var/lib/docker/ directory must be mounted on a ZFS-formatted filesystem. Changing the storage driver makes any containers you have already created inaccessible on the local system. Use docker save to ...
which included a ZFS 0.8 to ZFS 2.0 update. Not soon after, I started getting random file corruption issues. I didn’t see any SMART errors on the drives, but still assumed that my hard drive could be going bad. My storage had outgrown my previous backup drive anyway...
Despite being new to FreeNAS, over the past few months of use I have really come to appreciate how powerful it is as a storage operating system (in particular ZFS with adequate RAM!). Drive Setup: 6x WD Red 3TB in Raid-Z2 (Half the drives have the 80.00 firmware, the others have ...
Traditionally hard drives had a sector size of 512 bytes; nowadays most drives come with a 4KiB sector size and some even with an 8KiB sector size (for example modern SSDs). When a device is added to a vdev (including at pool creation) ZFS will attempt to automatically detect the unde...
And I've used in the past many times even with 5.4k rpm drives without issues. After reducing the "zfs_dirty_data_max" the issue has gone and the system simply "run as fast as disks permit" without troubles. I can agree that on an enterprise-grade VM production system it is not a...
how many disk trays you have, what size drives they are, how many pools you want to make, and the calculator does the rest. It even shows you a nice graphical layout of your trays. Now, it’s not as easy as a webpage, but it’s not too bad, I promise. ...
having same number of checksum errors on all drives really means bad cabling or bad RAM. - if you have ECC RAM, check for errors in ipmitool i.e. ipmitool sel elist - you could see something in dmesg too. - if you don't have ECC ram, get the memtest in UEFI mode fromhttps://...
For production use, you should really read up on the benefits and drawbacks of different RAID levels in ZFS, and how to structure zpools and vdevs. The specific structure you should use depends on how many and what type of drives you have, as well as your performance and redundancy needs...
Get guidance on setting up your ZFS pool, whether using existing drives or deciding how many new ones to buy. Find the best options for your setup.